1031012012209 has 2 divisors, whose sum is σ = 1031012012210. Its totient is φ = 1031012012208.

The previous prime is 1031012012201. The next prime is 1031012012213. The reversal of 1031012012209 is 9022102101301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 984206853184 + 46805159025 = 992072^2 + 216345^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031012012209 - 2³ = 1031012012201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1031012012209.

It is not a weakly prime, because it can be changed into another prime (1031012012201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515506006104 + 515506006105.

It is an arithmetic number, because the mean of its divisors is an integer number (515506006105).

Almost surely, 2^{1031012012209} is an apocalyptic number.

It is an amenable number.

1031012012209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031012012209 is an equidigital number, since it uses as much as digits as its factorization.

1031012012209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 1031012012209 in words is "one trillion, thirty-one billion, twelve million, twelve thousand, two hundred nine".